Case dimensions (length × width × height) 47.1 × 42.5 × 8.7 mm Weight 86 g Case and bezel material Titanium Strap Titanium alloy strap Solid strap One-touch sliding adjustable three-fold clasp 100 m water resistance Time adjustment 6-station radio reception Bluetooth: connects to smartphone and automatically adjusts time Power and battery life Tough Solar system (solar power) Smartphone link function Mobile Link (wireless connection using Bluetooth) Apps CASIO WATCHES App link function Automatic time adjustment Easy watch settings Approximately 300 world time cities Home mode switching Watch status display Mobile search Quality production line certificate Glass Sapphire crystal Surface treatment Titanium carbide coating Compatible strap sizes 150 to 205 mm Others Neobrite World time World time 38 time zones (27 cities + Coordinated Universal Time), Home City Time Switching, Automatic Daylight Saving Time Switching Stopwatch 1-second stopwatch Maximum range: 23:59'59 Calendar Fully automatic calendar (to the year 2099) Hand reference position correction Automatic correction of hand position Energy saving function Power saving function (when the watch is in the dark, the hands stop moving to save power) Battery display/alarm Battery level indicator Battery life Approximate battery life: Rechargeable battery 5 months (normal use and not exposed to light after charging) Rechargeable battery 18 months (fully charged with power saving function turned on, when stored in total darkness) Accuracy Accuracy: ±15 seconds/month (excluding signal calibration and Mobile Link function) Other functions Date display Date indicator General timekeeping: Hands: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (hours and minutes for dual time, 24 Hours, date) Time adjustment details Time calibration signal reception Automatic reception up to six times a day* (after one successful reception, the remaining automatic receptions will be canceled) *Receive the Chinese calibration signal five times a day Manual reception Latest signal reception results Time calibration signal Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, UK) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, USA) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima)/60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu, Henan, China) Frequency: 68.5 kHz